Help my dental crown is loose What should I do?

I had a filling done next to my crown on another tooth a few weeks ago and ever since then i have been getting some pain in the tooth with a crown even tho it had a root canal. Today this tooth was bothering me and i thought maybe i had something stuck in between so i took some floss and the crown is know loose. I do have an appointment at the dentist next Thursday but im worried it might fall out by then. Today i called no one is picking up. Tomorrow it closes early while im a work. Have no clue what should i do? should i eat some softer foods and just wait patiently until next Thursday?

Help my dental crown is loose What should I do?
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